Advertisement
Upper looper thread
tension adjuster
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There is a
basic
difference
in the
thread tension
adjustment standard between 3-thread and
2-thread
over-
;i?lif ;r'l;1*
case,
tension adiustment
varies
bv the tvpe
and thickness
of
threads
to
be
used
and
the mate-
Make
thread tension
adjustments accordingly
with
reference
to
"Application
Reference
for cloth,
Thread
and Needles"
(Page
2Sl ,
examining
the
seams
coming out
each
time.
3-1
Adjustment
for
3-thread overedging
The
bottom
line
of
each
thread tension
adjuster
knob
should
be
ranged
within
the
blue
stripzone
on the
adjuster
dial cover
(Figure 2g).
First, line
up
the
bottom
lines
of
all three
tension
adjuster knobs
with
the
center
of
the
blue strip
zone.
Then
make
minute
adjustments
of
each
adjuster, checking
the
seams
coming
out
with
each
adjustment. Figure
30
shows
ideal
seams
sewn
by
3-thread overedging.
Tension adjuster knob
(Figure
281
ldeal
soams
(Figure 30)
Needle
threao
Figure
291
13
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